Submission #632242

#	Time	Username	Problem	Language	Result	Execution time	Memory
632242		device	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
typedef long long ll;
using namespace std;
int main(){
	int n, l, u; cin >> n >> l >> u;
	vector<pair<int,int>> v(n);
	for(int i = 0; i < n; i++){
		cin >> v[i].ff;
		v[i].ss = i;
	}
	sort(v.begin(), v.end());
	int cur = v[0].ff;
	int ptr = 0;
	if(cur >= l && cur <= u){
		cout << 1 << endl << v[0].ss << endl;
		return;
	}
	for(int i = 1; i < n; i++){
		cur += v[i].ff;
		if(cur >= l && cur <= u){
			cout << i-ptr+1 << endl;
			for(int j = ptr; j <= i; j++){
				cout << v[j].ss << " ";
			}
			return;
		}
		while(cur > u && ptr <= i){
			cur -= v[ptr].ff;
			ptr++;
		}
		if(cur >= l && cur <= u){
			cout << i-ptr+1 << endl;
			for(int j = ptr; j <= i; j++){
				cout << v[j].ss << " ";
			}
			return;
		}
	}
	cout << 0 << endl;
}

Compilation message (stderr)

cc1plus: error: '::main' must return 'int'
molecules.cpp: In function 'int main()':
molecules.cpp:20:3: error: return-statement with no value, in function returning 'int' [-fpermissive]
   20 |   return;
      |   ^~~~~~
molecules.cpp:29:4: error: return-statement with no value, in function returning 'int' [-fpermissive]
   29 |    return;
      |    ^~~~~~
molecules.cpp:40:4: error: return-statement with no value, in function returning 'int' [-fpermissive]
   40 |    return;
      |    ^~~~~~